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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/NodeIntrinsificationPhase.java @ 9860:6a0da51dfba4

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Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
author Gilles Duboscq <duboscq@ssw.jku.at>
date Tue, 04 Jun 2013 17:23:39 +0200
parents e7c396ce0f3d
children 2d5c0f7ce7a1
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1 /*
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2 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.replacements;
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24
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25 import static com.oracle.graal.api.meta.MetaUtil.*;
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26
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27 import java.lang.reflect.*;
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28 import java.util.*;
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29
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30 import com.oracle.graal.api.meta.*;
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31 import com.oracle.graal.debug.*;
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32 import com.oracle.graal.graph.*;
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33 import com.oracle.graal.graph.Node.ConstantNodeParameter;
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34 import com.oracle.graal.graph.Node.NodeIntrinsic;
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35 import com.oracle.graal.nodes.*;
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36 import com.oracle.graal.nodes.PhiNode.PhiType;
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37 import com.oracle.graal.nodes.calc.*;
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38 import com.oracle.graal.nodes.extended.*;
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39 import com.oracle.graal.nodes.java.*;
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40 import com.oracle.graal.nodes.type.*;
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41 import com.oracle.graal.nodes.util.*;
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42 import com.oracle.graal.phases.*;
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43 import com.oracle.graal.replacements.Snippet.Fold;
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44
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45 /**
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46 * Replaces calls to {@link NodeIntrinsic}s with nodes and calls to methods annotated with
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47 * {@link Fold} with the result of invoking the annotated method via reflection.
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48 */
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49 public class NodeIntrinsificationPhase extends Phase {
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50
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51 private final MetaAccessProvider runtime;
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52
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53 public NodeIntrinsificationPhase(MetaAccessProvider runtime) {
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54 this.runtime = runtime;
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55 }
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56
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57 @Override
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58 protected void run(StructuredGraph graph) {
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59 ArrayList<Node> cleanUpReturnList = new ArrayList<>();
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60 for (MethodCallTargetNode node : graph.getNodes(MethodCallTargetNode.class)) {
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61 tryIntrinsify(node, cleanUpReturnList);
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62 }
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63
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64 for (Node node : cleanUpReturnList) {
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65 cleanUpReturnCheckCast(node);
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66 }
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67 }
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68
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69 private boolean tryIntrinsify(MethodCallTargetNode methodCallTargetNode, List<Node> cleanUpReturnList) {
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70 ResolvedJavaMethod target = methodCallTargetNode.targetMethod();
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71 NodeIntrinsic intrinsic = target.getAnnotation(Node.NodeIntrinsic.class);
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72 ResolvedJavaType declaringClass = target.getDeclaringClass();
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73 if (intrinsic != null) {
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74 assert target.getAnnotation(Fold.class) == null;
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75 assert Modifier.isStatic(target.getModifiers()) : "node intrinsic must be static: " + target;
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76
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77 ResolvedJavaType[] parameterTypes = MetaUtil.resolveJavaTypes(MetaUtil.signatureToTypes(target), declaringClass);
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78 ResolvedJavaType returnType = target.getSignature().getReturnType(declaringClass).resolve(declaringClass);
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79
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80 // Prepare the arguments for the reflective constructor call on the node class.
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81 Constant[] nodeConstructorArguments = prepareArguments(methodCallTargetNode, parameterTypes, target, false);
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82 if (nodeConstructorArguments == null) {
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83 return false;
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84 }
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85
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86 // Create the new node instance.
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87 ResolvedJavaType c = getNodeClass(target, intrinsic);
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88 Node newInstance = createNodeInstance(c, parameterTypes, returnType, intrinsic.setStampFromReturnType(), nodeConstructorArguments);
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90 // Replace the invoke with the new node.
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91 methodCallTargetNode.graph().add(newInstance);
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92 methodCallTargetNode.invoke().intrinsify(newInstance);
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93
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94 // Clean up checkcast instructions inserted by javac if the return type is generic.
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95 cleanUpReturnList.add(newInstance);
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96 } else if (target.getAnnotation(Fold.class) != null) {
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97 ResolvedJavaType[] parameterTypes = MetaUtil.resolveJavaTypes(MetaUtil.signatureToTypes(target), declaringClass);
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98
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99 // Prepare the arguments for the reflective method call
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100 Constant[] arguments = prepareArguments(methodCallTargetNode, parameterTypes, target, true);
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101 if (arguments == null) {
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102 return false;
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103 }
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104 Constant receiver = null;
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105 if (!methodCallTargetNode.isStatic()) {
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106 receiver = arguments[0];
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107 arguments = Arrays.copyOfRange(arguments, 1, arguments.length);
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108 parameterTypes = Arrays.copyOfRange(parameterTypes, 1, parameterTypes.length);
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109 }
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111 // Call the method
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112 Constant constant = target.invoke(receiver, arguments);
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114 if (constant != null) {
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115 // Replace the invoke with the result of the call
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116 ConstantNode node = ConstantNode.forConstant(constant, runtime, methodCallTargetNode.graph());
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117 methodCallTargetNode.invoke().intrinsify(node);
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119 // Clean up checkcast instructions inserted by javac if the return type is generic.
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parents: 8575
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120 cleanUpReturnList.add(node);
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121 } else {
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122 // Remove the invoke
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diff changeset
123 methodCallTargetNode.invoke().intrinsify(null);
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124 }
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125 }
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126 return true;
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127 }
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128
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129 /**
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130 * Converts the arguments of an invoke node to object values suitable for use as the arguments
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131 * to a reflective invocation of a Java constructor or method.
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132 *
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133 * @param folding specifies if the invocation is for handling a {@link Fold} annotation
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134 * @return the arguments for the reflective invocation or null if an argument of {@code invoke}
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135 * that is expected to be constant isn't
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136 */
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137 private Constant[] prepareArguments(MethodCallTargetNode methodCallTargetNode, ResolvedJavaType[] parameterTypes, ResolvedJavaMethod target, boolean folding) {
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138 NodeInputList<ValueNode> arguments = methodCallTargetNode.arguments();
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139 Constant[] reflectionCallArguments = new Constant[arguments.size()];
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140 for (int i = 0; i < reflectionCallArguments.length; ++i) {
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141 int parameterIndex = i;
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142 if (!methodCallTargetNode.isStatic()) {
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143 parameterIndex--;
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144 }
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145 ValueNode argument = arguments.get(i);
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parents: 5663
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146 if (folding || MetaUtil.getParameterAnnotation(ConstantNodeParameter.class, parameterIndex, target) != null) {
5760
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147 if (!(argument instanceof ConstantNode)) {
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148 return null;
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149 }
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150 ConstantNode constantNode = (ConstantNode) argument;
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151 Constant constant = constantNode.asConstant();
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152 Object o = constant.asBoxedValue();
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153 if (o instanceof Class<?>) {
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154 reflectionCallArguments[i] = Constant.forObject(runtime.lookupJavaType((Class<?>) o));
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155 parameterTypes[i] = runtime.lookupJavaType(ResolvedJavaType.class);
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156 } else {
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157 if (parameterTypes[i].getKind() == Kind.Boolean) {
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158 reflectionCallArguments[i] = Constant.forObject(Boolean.valueOf(constant.asInt() != 0));
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159 } else if (parameterTypes[i].getKind() == Kind.Byte) {
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diff changeset
160 reflectionCallArguments[i] = Constant.forObject(Byte.valueOf((byte) constant.asInt()));
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161 } else if (parameterTypes[i].getKind() == Kind.Short) {
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diff changeset
162 reflectionCallArguments[i] = Constant.forObject(Short.valueOf((short) constant.asInt()));
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163 } else if (parameterTypes[i].getKind() == Kind.Char) {
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164 reflectionCallArguments[i] = Constant.forObject(Character.valueOf((char) constant.asInt()));
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165 } else {
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166 reflectionCallArguments[i] = constant;
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167 }
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168 }
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169 } else {
9100
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170 reflectionCallArguments[i] = Constant.forObject(argument);
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171 parameterTypes[i] = runtime.lookupJavaType(ValueNode.class);
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172 }
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173 }
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174 return reflectionCallArguments;
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175 }
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176
9100
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177 private ResolvedJavaType getNodeClass(ResolvedJavaMethod target, NodeIntrinsic intrinsic) {
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178 ResolvedJavaType result;
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179 if (intrinsic.value() == NodeIntrinsic.class) {
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180 result = target.getDeclaringClass();
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181 } else {
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182 result = runtime.lookupJavaType(intrinsic.value());
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183 }
9350
e7c396ce0f3d better error message for incorrect usage of @NodeIntrinsic
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parents: 9147
diff changeset
184 assert runtime.lookupJavaType(ValueNode.class).isAssignableFrom(result) : "Node intrinsic class " + toJavaName(result, false) + " derived from @" + NodeIntrinsic.class.getSimpleName() +
e7c396ce0f3d better error message for incorrect usage of @NodeIntrinsic
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parents: 9147
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185 " annotation on " + format("%H.%n(%p)", target) + " is not a subclass of " + ValueNode.class;
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186 return result;
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187 }
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188
9100
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189 private Node createNodeInstance(ResolvedJavaType nodeClass, ResolvedJavaType[] parameterTypes, ResolvedJavaType returnType, boolean setStampFromReturnType, Constant[] nodeConstructorArguments) {
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190 ResolvedJavaMethod constructor = null;
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191 Constant[] arguments = null;
5578
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192
9100
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diff changeset
193 for (ResolvedJavaMethod c : nodeClass.getDeclaredConstructors()) {
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194 Constant[] match = match(c, parameterTypes, nodeConstructorArguments);
5578
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195
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diff changeset
196 if (match != null) {
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diff changeset
197 if (constructor == null) {
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diff changeset
198 constructor = c;
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diff changeset
199 arguments = match;
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200 } else {
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201 throw new GraalInternalError("Found multiple constructors in " + nodeClass + " compatible with signature " + Arrays.toString(parameterTypes) + ": " + constructor + ", " + c);
5578
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202 }
445dd1a9b8d8 enhanced @NodeIntrinsic intrinsification to take into account varargs in the node constructors when matching call arguments
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parents: 5576
diff changeset
203 }
445dd1a9b8d8 enhanced @NodeIntrinsic intrinsification to take into account varargs in the node constructors when matching call arguments
Doug Simon <doug.simon@oracle.com>
parents: 5576
diff changeset
204 }
445dd1a9b8d8 enhanced @NodeIntrinsic intrinsification to take into account varargs in the node constructors when matching call arguments
Doug Simon <doug.simon@oracle.com>
parents: 5576
diff changeset
205 if (constructor == null) {
445dd1a9b8d8 enhanced @NodeIntrinsic intrinsification to take into account varargs in the node constructors when matching call arguments
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diff changeset
206 throw new GraalInternalError("Could not find constructor in " + nodeClass + " compatible with signature " + Arrays.toString(parameterTypes));
445dd1a9b8d8 enhanced @NodeIntrinsic intrinsification to take into account varargs in the node constructors when matching call arguments
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diff changeset
207 }
9100
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diff changeset
208
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diff changeset
209 try {
9100
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210 ValueNode intrinsicNode = (ValueNode) constructor.newInstance(arguments).asObject();
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diff changeset
211
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parents: 6409
diff changeset
212 if (setStampFromReturnType) {
7098
e23980f4a890 Cleanup of Kind class: remove isXxx methods
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diff changeset
213 if (returnType.getKind() == Kind.Object) {
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parents: 6409
diff changeset
214 intrinsicNode.setStamp(StampFactory.declared(returnType));
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parents: 6409
diff changeset
215 } else {
6539
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Christian Wimmer <christian.wimmer@oracle.com>
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diff changeset
216 intrinsicNode.setStamp(StampFactory.forKind(returnType.getKind()));
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diff changeset
217 }
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parents: 6409
diff changeset
218 }
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diff changeset
219 return intrinsicNode;
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220 } catch (Exception e) {
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diff changeset
221 throw new RuntimeException(constructor + Arrays.toString(nodeConstructorArguments), e);
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222 }
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223 }
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parents:
diff changeset
224
9100
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225 private Constant[] match(ResolvedJavaMethod c, ResolvedJavaType[] parameterTypes, Constant[] nodeConstructorArguments) {
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226 Constant[] arguments = null;
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diff changeset
227 boolean needsMetaAccessProviderArgument = false;
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diff changeset
228
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diff changeset
229 ResolvedJavaType[] signature = MetaUtil.resolveJavaTypes(MetaUtil.signatureToTypes(c.getSignature(), null), c.getDeclaringClass());
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diff changeset
230 if (signature.length != 0 && signature[0].equals(runtime.lookupJavaType(MetaAccessProvider.class))) {
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diff changeset
231 // Chop off the MetaAccessProvider first parameter
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diff changeset
232 signature = Arrays.copyOfRange(signature, 1, signature.length);
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diff changeset
233 needsMetaAccessProviderArgument = true;
5175
a8c5283a835c added @Fold to folding methods during snippet intrinsification; replaced CardTableStartNode and CardTableShiftNode with @Fold methods
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parents: 5061
diff changeset
234 }
9100
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235
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diff changeset
236 if (Arrays.equals(parameterTypes, signature)) {
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diff changeset
237 // Exact match
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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diff changeset
238 arguments = nodeConstructorArguments;
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239
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diff changeset
240 } else if (signature.length > 0 && signature[signature.length - 1].isArray()) {
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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diff changeset
241 // Last constructor parameter is an array, so check if we have a vararg match
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diff changeset
242 int fixedArgs = signature.length - 1;
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diff changeset
243 if (parameterTypes.length < fixedArgs) {
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244 return null;
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245 }
9100
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diff changeset
246 for (int i = 0; i < fixedArgs; i++) {
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247 if (!parameterTypes[i].equals(signature[i])) {
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248 return null;
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249 }
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250 }
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251
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252 ResolvedJavaType componentType = signature[fixedArgs].getComponentType();
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253 assert componentType != null;
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diff changeset
254 for (int i = fixedArgs; i < nodeConstructorArguments.length; i++) {
9101
cfe822a31f67 Use same type check for varargs and non-varargs parameters
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parents: 9100
diff changeset
255 if (!parameterTypes[i].equals(componentType)) {
9100
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diff changeset
256 return null;
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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257 }
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258 }
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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parents: 9089
diff changeset
259 arguments = Arrays.copyOf(nodeConstructorArguments, fixedArgs + 1);
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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diff changeset
260 arguments[fixedArgs] = componentType.newArray(nodeConstructorArguments.length - fixedArgs);
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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261
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diff changeset
262 Object varargs = arguments[fixedArgs].asObject();
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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diff changeset
263 for (int i = fixedArgs; i < nodeConstructorArguments.length; i++) {
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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diff changeset
264 Array.set(varargs, i - fixedArgs, nodeConstructorArguments[i].asBoxedValue());
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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265 }
d24955427b0b Remove MetaUtil.getMirrorOrFail; Add necessary functionality to the Graal API so that all previous usages of java.lang.Class can now use ResolvedJavaType
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266 } else {
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diff changeset
267 return null;
5175
a8c5283a835c added @Fold to folding methods during snippet intrinsification; replaced CardTableStartNode and CardTableShiftNode with @Fold methods
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parents: 5061
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268 }
9100
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269
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diff changeset
270 if (needsMetaAccessProviderArgument) {
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diff changeset
271 Constant[] copy = new Constant[arguments.length + 1];
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diff changeset
272 System.arraycopy(arguments, 0, copy, 1, arguments.length);
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diff changeset
273 copy[0] = Constant.forObject(runtime);
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diff changeset
274 arguments = copy;
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275 }
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diff changeset
276 return arguments;
5175
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diff changeset
277 }
a8c5283a835c added @Fold to folding methods during snippet intrinsification; replaced CardTableStartNode and CardTableShiftNode with @Fold methods
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diff changeset
278
5563
6a2671066204 added NewInstanceSnippets for lowering NewInstanceNodes (currently disabled by default)
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parents: 5547
diff changeset
279 private static String sourceLocation(Node n) {
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diff changeset
280 String loc = GraphUtil.approxSourceLocation(n);
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diff changeset
281 return loc == null ? "<unknown>" : loc;
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diff changeset
282 }
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diff changeset
283
3733
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parents:
diff changeset
284 public void cleanUpReturnCheckCast(Node newInstance) {
6408
e5768e936147 Allow snippets to inherit the stateAfter and stamp from the replacee
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parents: 5764
diff changeset
285 if (newInstance instanceof ValueNode && (((ValueNode) newInstance).kind() != Kind.Object || ((ValueNode) newInstance).stamp() == StampFactory.forNodeIntrinsic())) {
4309
4a609a685fa4 changes to Node structures:
Lukas Stadler <lukas.stadler@jku.at>
parents: 4199
diff changeset
286 StructuredGraph graph = (StructuredGraph) newInstance.graph();
4411
cd2b68ef8e23 cleanup around filter and predicates :
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parents: 4310
diff changeset
287 for (CheckCastNode checkCastNode : newInstance.usages().filter(CheckCastNode.class).snapshot()) {
cd2b68ef8e23 cleanup around filter and predicates :
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parents: 4310
diff changeset
288 for (Node checkCastUsage : checkCastNode.usages().snapshot()) {
9860
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
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diff changeset
289 checkCheckCastUsage(graph, newInstance, checkCastNode, checkCastUsage);
3733
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
290 }
5372
4485e0edd1af made CheckCastNode be a FixedNode instead of a BooleanNode
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
291 FixedNode next = checkCastNode.next();
4485e0edd1af made CheckCastNode be a FixedNode instead of a BooleanNode
Doug Simon <doug.simon@oracle.com>
parents: 5210
diff changeset
292 checkCastNode.setNext(null);
5487
9743ae819f73 Move virtual chain help methods from SuperBlock to GraphUtil
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 5463
diff changeset
293 checkCastNode.replaceAtPredecessor(next);
5372
4485e0edd1af made CheckCastNode be a FixedNode instead of a BooleanNode
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parents: 5210
diff changeset
294 GraphUtil.killCFG(checkCastNode);
3733
e233f5660da4 Added Java files from Maxine project.
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parents:
diff changeset
295 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
296 }
e233f5660da4 Added Java files from Maxine project.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
297 }
9860
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diff changeset
298
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diff changeset
299 private static void checkCheckCastUsage(StructuredGraph graph, Node intrinsifiedNode, Node input, Node usage) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
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parents: 9350
diff changeset
300 if (usage instanceof ValueAnchorNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
301 ValueAnchorNode valueAnchorNode = (ValueAnchorNode) usage;
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parents: 9350
diff changeset
302 valueAnchorNode.removeAnchoredNode((ValueNode) input);
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
303 Debug.log("%s: Removed a ValueAnchor input", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
304 } else if (usage instanceof UnboxNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
305 UnboxNode unbox = (UnboxNode) usage;
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
306 unbox.replaceAtUsages(intrinsifiedNode);
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
307 graph.removeFixed(unbox);
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Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
308 Debug.log("%s: Removed an UnboxNode", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
309 } else if (usage instanceof MethodCallTargetNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
310 MethodCallTargetNode checkCastCallTarget = (MethodCallTargetNode) usage;
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
311 assert checkCastCallTarget.targetMethod().getAnnotation(NodeIntrinsic.class) != null : "checkcast at " + sourceLocation(input) +
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
312 " not used by an unboxing method or node intrinsic, but by a call at " + sourceLocation(checkCastCallTarget.usages().first()) + " to " + checkCastCallTarget.targetMethod();
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
313 usage.replaceFirstInput(input, intrinsifiedNode);
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
314 Debug.log("%s: Checkcast used in an other node intrinsic", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
315 } else if (usage instanceof FrameState) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
316 usage.replaceFirstInput(input, null);
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
317 Debug.log("%s: Checkcast used in a FS", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
318 } else if (usage instanceof ReturnNode && ((ValueNode) intrinsifiedNode).stamp() == StampFactory.forNodeIntrinsic()) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
319 usage.replaceFirstInput(input, intrinsifiedNode);
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
320 Debug.log("%s: Checkcast used in a return with forNodeIntrinsic stamp", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
321 } else if (usage instanceof IsNullNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
322 assert usage.usages().count() == 1 && usage.usages().first().predecessor() == input;
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
323 graph.replaceFloating((FloatingNode) usage, LogicConstantNode.contradiction(graph));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
324 Debug.log("%s: Replaced IsNull with false", Debug.contextSnapshot(JavaMethod.class));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
325 } else if (usage instanceof ProxyNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
326 ProxyNode proxy = (ProxyNode) usage;
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
327 assert proxy.type() == PhiType.Value;
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
328 ProxyNode newProxy = graph.unique(new ProxyNode((ValueNode) intrinsifiedNode, proxy.proxyPoint(), PhiType.Value, proxy.getIdentity()));
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
329 for (Node proxyUsage : usage.usages()) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
330 checkCheckCastUsage(graph, newProxy, proxy, proxyUsage);
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
331 }
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 9350
diff changeset
332 } else if (usage instanceof PiNode) {
6a0da51dfba4 Handle Proxies and pi nodes better in the NodeIntrinsificationPhase
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333 for (Node piUsage : usage.usages()) {
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334 checkCheckCastUsage(graph, intrinsifiedNode, usage, piUsage);
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335 }
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parents: 9350
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336 } else {
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337 Debug.dump(graph, "exception");
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338 assert false : sourceLocation(usage) + " has unexpected usage " + usage + " of checkcast at " + sourceLocation(input);
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339 }
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340 }
3733
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341 }